CN205154425U - Wrist pin - Google Patents
Wrist pin Download PDFInfo
- Publication number
- CN205154425U CN205154425U CN201521023344.0U CN201521023344U CN205154425U CN 205154425 U CN205154425 U CN 205154425U CN 201521023344 U CN201521023344 U CN 201521023344U CN 205154425 U CN205154425 U CN 205154425U
- Authority
- CN
- China
- Prior art keywords
- shank
- wrist pin
- oil groove
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a wrist pin, this wrist pin includes: the shank, and the oil groove, two at least these oil grooves along circumference set up uniformly in on the lateral wall of shank, the length direction of oil groove with the axial of shank is unanimous. The utility model discloses a be provided with the oil groove on the shank, can have strengthened wrist pin's lubricating ability greatly, improved its wearability. And oil groove processing is convenient, has reduced the material, has alleviateed weight, the cost is reduced.
Description
Technical field
The utility model relates to piston field, particularly a kind of wrist pin.
Background technique
Piston connecting rod unit is a vitals in diesel engine, the quality of its assembly quality, and on the sealing of cylinder operation with there is direct impact working life, connecting rod needs to be connected with piston by wrist pin.In the ordinary course of things, the rigidity of wrist pin is particularly important, if wrist pin occurs bending and deformation, piston pin boss may be made to damage.But wrist pin, except must having enough rigidity, intensity and wear resistance, also must have certain lubrication environment, pin and pin-and-hole should have suitable matching gap and good surface quality.At present, wrist pin bears very large periodic shock load under the high temperature conditions, and due to wrist pin pendulum angle in pin-and-hole little, be difficult to form lubricant film, thus cause lubricating condition poor.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is to provide a kind of wrist pin, thus overcomes and be existingly difficult to form the lubricant film shortcoming that causes lubricating condition poor because wrist pin pendulum angle in pin-and-hole does not cause very much.
For achieving the above object, the utility model provides a kind of wrist pin, wherein, comprising: shank; And oil groove, at least two these oil grooves are circumferentially arranged on the sidewall of described shank equably, the length direction of described oil groove and the axial consistent of described shank.
Preferably, in technique scheme, four described oil grooves are circumferentially arranged on the sidewall of described shank equably.
Preferably, in technique scheme, described oil groove is arranged at the middle part of the sidewall of described shank.
Preferably, in technique scheme, the width of described oil groove is not more than 1.5mm.
Preferably, in technique scheme, the degree of depth of described oil groove is not more than 1mm.
Compared with prior art, the utility model has following beneficial effect:
The utility model, by being provided with oil groove on shank, greatly can strengthening the lubricating ability of wrist pin, improve its wear resistance.And oil groove is easy to process, decrease material, alleviate weight, reduce cost.
Accompanying drawing explanation
Fig. 1 is the structural representation according to the utility model wrist pin.
Fig. 2 is to sectional view according to the A-A of Fig. 1 of the present utility model.
Fig. 3 is the structural representation according to connecting rod.
Fig. 4 carries out according to connecting rod and piston the structural representation that is connected by wrist pin of the present utility model.
Main Reference Numerals illustrates:
1-shank, 11-oil groove; 2-connecting rod; 3-piston; 4-lining, 41-lining oil groove.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
Fig. 1 to Fig. 2 shows the structural representation of the wrist pin according to the utility model preferred implementation.This wrist pin comprises shank 1 and oil groove 11, and at least two oil grooves 11 are circumferentially arranged on the sidewall of shank 1 equably, and the length direction of oil groove 11 and the axial consistent of shank 1, oil groove 11 two ends are along its length closed.Preferably, one has four oil grooves 11, and these four oil grooves 11 are circumferentially arranged on the sidewall of shank 1 equably.Further preferably, oil groove 11 is arranged at the middle part of the sidewall of shank 1, and it is symmetrical along axis.Again further preferably, the width of oil groove is not more than 1.5mm, and the degree of depth of oil groove is not more than 1mm, thus while shank 1 organic oil can be made to carry out lubricating, still can ensure the intensity of shank 1, to ensure the working life of shank 1.
As shown in Figure 3, the attachment hole of the little head end of connecting rod 2 is provided with lining 4, lining oil groove 41 is provided with in lining 4, as shown in Figure 4, connecting rod 2 is identical with conventional Placement by the connection of wrist pin of the present utility model with piston 3, shank 1 is sheathed in lining 4, and oil groove 11 is corresponding with the lining oil groove 41 of lining 4, and the two ends of shank 1 are respectively fixed on by jump ring on the skirt section of piston 3.Piston 3 is in movement process, a machine oil part is stored in the lining oil groove 41 of lining 4, a part is stored in the oil groove 11 of shank 1, these machine oil reduce the friction between village's cover 4 and shank 1, thus reduce the wearing and tearing of shank 1, thus improve the lubricating ability of wrist pin, make wrist pin while meeting strength and stiffness requirement, turn improve the stability of pistons work.This structure can meet intensity needs, saves material, reduces weight, can improve again rigidity and the wear resistance of wrist pin.And its structure is simple, easily assembles.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (5)
1. a wrist pin, is characterized in that, comprising:
Shank; And
Oil groove, at least two these oil grooves are circumferentially arranged on the sidewall of described shank equably, the length direction of described oil groove and the axial consistent of described shank.
2. wrist pin according to claim 1, is characterized in that, four described oil grooves are circumferentially arranged on the sidewall of described shank equably.
3. wrist pin according to claim 1, is characterized in that, described oil groove is arranged at the middle part of the sidewall of described shank.
4. wrist pin according to claim 3, is characterized in that, the width of described oil groove is not more than 1.5mm.
5. wrist pin according to claim 4, is characterized in that, the degree of depth of described oil groove is not more than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521023344.0U CN205154425U (en) | 2015-12-10 | 2015-12-10 | Wrist pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521023344.0U CN205154425U (en) | 2015-12-10 | 2015-12-10 | Wrist pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154425U true CN205154425U (en) | 2016-04-13 |
Family
ID=55690130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521023344.0U Expired - Fee Related CN205154425U (en) | 2015-12-10 | 2015-12-10 | Wrist pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386890A (en) * | 2015-12-10 | 2016-03-09 | 广西玉柴机器股份有限公司 | Piston pin |
| CN110486467A (en) * | 2019-08-31 | 2019-11-22 | 重庆长安汽车股份有限公司 | A kind of piston latch structure with self-lubricating function |
-
2015
- 2015-12-10 CN CN201521023344.0U patent/CN205154425U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386890A (en) * | 2015-12-10 | 2016-03-09 | 广西玉柴机器股份有限公司 | Piston pin |
| CN110486467A (en) * | 2019-08-31 | 2019-11-22 | 重庆长安汽车股份有限公司 | A kind of piston latch structure with self-lubricating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |